baber/WOPTO huggingface dataset:
Patent GB-540770-A (GB)
Title: Improvements in or relating to inductance coils
IPC: H03J3/06
Filed: 1940-05-01
Abstract: 540,770. Inductors. SULLIVAN, Ltd., H. W., and GRIFFITHS, W. H. F. May 1, 1940, No. 7814. [Class 38 (ii)] [Also in Group XL] The value of an inductance 27 at high frequencies shows an increment, due to distributed capacity effectively in shunt with the inductance, amounting to p<SP>2</SP>L 0 C 0  where p is the pulsatance, Lo is the inductance at low frequencies, and Co is the distributed capacity of the coil. In order to obtain coils of constant inductance at various frequencies the effective inductance is reduced below Lo by tapping off a portion of the coil, by means of a switch 24 for instance, and is then raised to the value L o  at a given frequency by means of a variable condenser 36 which is shunted across either the tapped-off portion or the whole coil. Each of the tappings is used for a different range of frequencies and the condenser 36 is graduated in terms of frequency for each range. The Specification describes several variations in the number and arrangement of the tappings and switch, including some (Figs. 5, 6, 7, not shown) in which the shunt condenser is omitted and the inductance is simply tapped down to the required value. The inductance 27 may be extended and provided with a series of tapping points similar to 35, each corresponding to a different value of the inductance and having a set of subsidiary tappings 28 ... 32 to allow for variations in frequency (Figs. 9, 10, not shown) ; for instance the inductance may be decade-tapped.
Patent GB-370160-A (GB)
Title: Improvements in cooking ranges
IPC: A47J36/38
Filed: 1931-03-14
Abstract: 370,160. Frying-ranges. NUTTALL, H., Castle Works, Bridge Street, Rochdale. March 14, 1931, No. 7871. [Class 126.] A gas-heated frying- range is provided with a fan 2 the induction side of which is connected to a'duct 3 connected both to the outlet 6 of the combustion chamber and also to the space above the cooking-pans, the latter connection being by way of a pipe 10 in the construction shown. The steam from the pans is thus brought in the duct 3 into intimate contact with the hot gases and prevented from condensing during its passage to or through the fan. A fat-collecting well 13 is provided in the duct 3, together with a sieve 15 or other fat-retaining means of the kind described in Specification 370,159. In the form shown, the gases from the combustion chamber pass by a tapered duct 8 to a heating-box 9, as described in Specification 372,478, and thence by a duct 5 to the duct 3.
Patent GB-163849-A (GB)
Title: Method of and means for moulding walls and similar structures of concrete
IPC: E04G11/20
Filed: 1920-03-17
Abstract: 163,849. Griffin, P. W. March 17, 1920. Moulding walls in situ; scaffolding and staging.-Shuttering for use in building walls in situ is supported by brackets secured to tubular posts a which are erected, plumbed, and connected by cross ties g and longitudinal stays f. The posts, which pass through shoes d and are supported by foundation plates c, are kept vertical by stays e, and the brackets .i for supporting the shuttering are formed in two hinged parts adapted to be clamped around the posts and to be secured at their free ends to the vertical flanges of the meeting shuttering, two brackets to each shuttering joint. The top and bottom edges of the shuttering, which are flanged, are secured together by bolts. The brackets i are adapted to carry foot-plates i and these plates may have their ends flanged to engage between the members of the brackets i. For angle work, angle shuttering is used.
Patent GB-1062388-A (GB)
Title: Improvements in or relating to anthraquinone derivatives
IPC: C09B43/06
Filed: 1966-02-23
Abstract: Anthraquinone-monoazo dyes of formula <FORM:1062388/C4-C5/1> in which one of R and R1 is hydrogen, the other being a methyl group are prepared by diazotizing 1-amino-anthraquinone and coupling, to 3 - hydroxy - 2 - naphtho - 21,41- or 21-, 61-dimethylanilide or by oxidation of the leucosulphuric acid ester of the anthraquinone-monoazo dye in presence of a small amount of polymeric N-vinyl-a -pyrrolidone. The dyes give red dyeings on polyester materials.
Patent GB-1085724-A (GB)
Title: Rutile opacifying pigment
IPC: D21H21/52
Filed: 1965-02-24
Abstract: A rutile pigment consists of at least 95% TiO2 as single particle not more than 20% thereof being above 0.3 m  wide and not more than 10% being less than 0.08m  wide and has a ratio of light scattering coefficient in 4570 <\>rA blue light to that in 6100 <\>rA red light (SX ratio) of at least 1.46.  Coating with a mixture of Al2O3, SiO2 and/or TiO2 in amount up to 15% of the rutile gives an SX ratio of 1.5-1.9.  The rutile may be prepared by either hydrolysing Ti(SO4)2 solution by heating in the presence of hydrous titania as nucleating agent and calcining the hydrolysate at 750-1050 DEG  C. as described in Specification 568,232, or preferably by oxidizing TiCl4 vapour with air or O2.  In the latter method the size is controlled by the dilution of O2, retention time in reaction zone, flow rates, presence of AlCl3 (Specification 707,560) and an alkali metal chloride (75-1000 p.p.m. of TiO2 being produced) as described in Canadian patent 662,785.  The pigment is coated by suspension in an aqueous slurry, at 50-100 DEG  C., of water-soluble Al, Si and Ti compounds (100-600 g./l.) adjusting the pH to ppt. the Al2O3, SiO2 and/or TiO2 on the base pigment, adjusting the pH to 6-9, and recovering the pigment particles which are then dry milled.
Patent GB-1140545-A (GB)
Title: Hop flavours for malt beverages and the like
IPC: C12C3/12
Filed: 1966-02-23
Abstract: 1,140,545. Hop extracts. KALAMAZOO SPICE EXTRACTION CO. 23 Feb., 1966 [1 March, 1965], No. 7975/66. Heading C2C. [Also in Division C6] 4 - Deoxytetrahydro - humulone, - adhumulone and -cohumulone are produced by hydrogenolysing lupulone, adlupulone and colupulone respectively, with hydrogen in the presence of a hydrogenation catalyst at an acidic pH. The products may be treated with an oxygencontaining gas in the presence of lead (II) acetate to yield tetrahydro-humulone, -adhumulone and -cohumulone which may be isomerized at a pH between 6 and 12 to yield tetrahydroiso - humulone, - adhumulone and -cohumulone.
Patent GB-1006071-A (GB)
Title: Feed device for thread rolling machine
IPC: B21H9/02
Filed: 1964-02-26
Abstract: 1,006,071. Rolling screw-threads. HARFORD SPECIAL MACHINERY CO. Feb. 26, 1964 [March 25, 1963], No. 7999/64. Heading B3M. In a thread rolling or profiling machine for screw blanks 6, having a fixed die 8 and a reciprocating die 10, a fixed guiding 4 for the blanks is provided at its end with a guiding bar 30 which can be pivoted upwardly to expose a number of blanks beneath it so that any defective blanks can be removed. The blanks are gravity fed between guide strips 20, the guiding bar 4 being adjustable by screws 38. To pivot the bar 30 upwardly a handle 67 is rotated to the position of Fig. 3, the handle itself pivoting about an axis 69 to slide a pin 60 from its keeper 64 in order to unlatch the bar. Springs 74 urge the bar 30 about its axis 50 into either a latched ot unlatched position. A shoe 80, adjustable by a screw 94, normally contacts the heads of the blanks to be rolled. A slide 106, Fig. 1, can be pushed to the left to hold the blanks in position while a defective blank is removed.
Patent GB-1144342-A (GB)
Title: Improvements relating to the vibration testing of vehicle suspensions
Inventor: ELLIS JOHN ROMAINE
IPC: G01M7/04
Filed: 1965-02-24
Abstract: 1,144,342. Testing vehicle suspensions; bearings. FAIREY SURVEYS Ltd. 20 May, 1966 [24 Feb., 1965], No. 8001/65. Headings F2A and F2S. [Also in Division G3] An installation for testing the suspension system of a road vehicle of the kind having at least one pair of road wheels mounted in positions spaced apart, one on either side of the vehicle, comprises, for each road wheel of the vehicle, a separate hydraulic vibration generator 10 each of which has a vertically movable jack plunger 13 with a table 14 upon which rests a horizontally movable wheel support platform 15, the vibration generators being mounted on a common fixed base 12, and means for driving the vibration generators independently of one another to apply to each road wheel a predetermined vertical vibration pattern, an antifriction bearing being incorporated in each vibration generator to allow relative movement between each wheel support and the fixed base in a horizontal direction parallel to the axis of the associated road wheel. Horizontal vibrations of the platform 15 are damped by an hydraulic piston and cylinder damper unit 20 having a damping control valve 25. The unit 20 may alternatively be employed as a vibration generator to impart horizontal vibrations 18 to a wheel 16. As shown, the platform 15 is supported by a ball or roller bearing 17. Alternatively, an hydraulic fluid bearing, Fig. 2 (not shown), may be interposed between the platform (30) and the jack table (31), recesses (32) in the underface (33) of the platform (30) being fed with pressure fluid delivered to a passageway (34) and one or more drain channels (36) being formed in the upper face of the table (31). The table (30) is also provided with a damper (20), and, alternatively, it may be supported by a pneumatic bearing. In a modification, a hydrostatic fluid bearing, Fig. 6, comprises a circular jack table 41 which is accommodated in a cylindrical recess 45 in a platform 40 formed by a flanged upper plate 42 bolted to a lower plate 44, an extension 48 of the jack plunger 13 passing through an aperture 49 in the lower plate 44 and through an oil sump 50. Four circumferentially-spaced, arcuate grooves 60 are formed in each bearing face 57, 58 and a separate oil passageway 62, formed in the respective plate 42 or 44 and provided with a flow restrictor 70, leads into each of the arcuate grooves 60 and is supplied with pressurized hydraulic fluid from a network of oil pipes (65), (66) having supply pipes (67), Fig. 4 (not shown). A branch passageway 76 extends from each passageway 63 and is provided with a nipple 74 for the application of a pressure gauge. One, or more, horizontal dampers, or vibrators, can be applied to each wheel support platform. A tapedriven control system for the installation of Fig. 1 is described (see Division G3).
Patent GB-436716-A (GB)
Title: Improvements in or relating to the manufacture of articles from synthetic resinous compositions
IPC: C08G8/00
Filed: 1934-03-14
Abstract: A liquid resinous composition is prepared by refluxing together 300 gms. of phenol, 300 gms. of forty per cent formaldehyde and 1,5 gms. of sodium hydroxide for 1 hour at a temperature of 105 DEG  C., distilling the product under reduced pressure until 200 ccs. of water have been removed, and then mixing the resulting resinous substance with 100 gms. ethylene glycol and 40 gms. of ordinary concentrated hydrochloric acid or other suitable acid catalyst. Specifications 380,824, 380,825, 388,662, 398,330, 401,428, 405,879, and 409,330 are referred to.ALSO:Rods, tubes, sheets, &c., are moulded in continuous lengths by preparing a liquid resinous composition which can be cast and which sets rapidly at a moderate temperature and passing the composition into a comparatively long mould having the cross-section of the article to be produced, the composition, after it has set at its forward end being pushed or pulled, by the application of only the very small pressure necessary to move the composition, through and out of the mould sufficiently slowly to enable the composition to set during its passage through the mould.  This mould may be from 1 to 6 ft. in length, and the composition one which sets in from 5 to 10 minutes at a temperature of 50 to 80 DEG  C., and which contracts during setting. The composition may be fed to the mould by gravity or by pressure, and may be pulled out of the mould by hand, by mechanical means or by suction.  The temperature of the mould may be uniform along its length, may rise in the direction of flow or in the opposite direction, or may rise and then fall along the length of the mould.  A suitable composition is prepared by refluxing together 300 gms. of phenol, 300 gms. of forty per cent formaldehyde and 1,5 gms. of sodium hydroxide for 1 hour at a temperature of 105 DEG  C., distilling the product under reduced pressure until 200 ccs. of water have been removed, and then mixing the resulting resinous substance with 100 gms. of ethylene glycol and 40 gms. of ordinary concentrated hydrochloric acid or other suitable acid catalyst. Specifications 380,824, 380,825, 388,662, 398,330, 401,428, 405,879, and 409,330, are referred to.
Patent GB-414812-A (GB)
Title: Improvements in or relating to trusses
IPC: A61F5/26
Filed: 1933-03-17
Abstract: 414,812. Surgical trusses. LATHAM, J. R., 2, Ward Street, Sheffield. March 17, 1933, No. 8071. [Class 81 (ii).] Relates to a truss of the kind in which the pressure exerted by the body spring A is transmitted to the pressure plate C through a ball and socket joint D, C3 which is situated above the centre of the pad. According to the invention, the part of the joint to which the spring A is attached is connected to another point on the plate C by a rigid link in order to distribute the pressure applied to the plate. The link is pivoted to the plate C and to a plate F which is rotatably mounted on the stem of the ball joint, and its length can be adjusted by means of a turn buckle J to enable the inclination of the plate C to be adjusted.
Patent GB-310620-A (GB)
Title: Improvements in electric connectors
IPC: H01R33/94
Filed: 1928-03-16
Abstract: 310,620. Taunton, J. B., and Ranton, Ltd. March 16, 1928. Two-part couplings. - The insulating body a of a bayonettype connector for attaching leads to a lamp-holder is made hollow and in one piece, the contacts g being mounted in its base b and the cap e being screwed to the annular wall c that may be flared at its open end. The terminals h screwed to the contacts g are separated by a partition i stamped from sheet material and wedged into the body a preferably by means of lateral enlargements i<1> at the inner end. The partition i may co-operate with the cap e to grip the flex passing through the aperture f.
Patent GB-1143186-A (GB)
Title: Anti-inflammatory and antiallergic agents
IPC: C07C271/22
Filed: 1966-02-24
Abstract: 1,143,186. Carbamates. J. R. GEIGY A.G. 24 Feb., 1966 [25 Feb., 1965], No. 8076/66. Heading C2C. [Also in Division A5] Compounds of the Formula I wherein R 1  and R 2  represent alkyl radicals or benzyl radicals optionally substituted by alkyl groups containing at most 12 carbon atoms, in the DL-, D- or L-form or non-toxic salts thereof are prepared by (1) reacting a compound of Formula II with R 1 -OH in the presence of an acid, (2) converting by known methods a compound of Formula III or a reactive derivative thereof into an alkyl or benzyl ester or (3) hydrolysing or reductively cleaving a compound of Formula IV wherein R 3  represents a mono- or polyarylmethyl or a carboxylic acid radical, a radical of a monofunctional derivative of carbonic acid or the p-tolyl sulphonyl radical; and if desired, converting the compounds obtained into salts with an inorganic or organic acids. Examples relate to the preparation of N<SP>6</SP>-isobutoxycarbonyl-L- lysine methyl and benzyl ester hydrochlorides, N<SP>6</SP>-benzyloxycarbonyl-L-lysine isopropyl and n-butyl ester hydrochlorides, N<SP>6</SP>-benzyloxycarbonyl-DL-lysine methyl ester and N<SP>6</SP>-benzyloxycarbonyl-L-lysine dodecyl ester. N<SP>6</SP> - Isobutoxycarbonyl - L - lysine is prepared by reacting L-lysine hydrochloride with basic copper carbonate and adding isobutyl chloroformate to form the copper complex of N<SP>6</SP>-isobutoxycarbonyl-L-lysine, which is reacted with hydrogen sulphide. N<SP>6</SP> - Benzyloxycarhonyl - L - lysine - N<SP>2</SP> - carboxyanhydride is produced by the reaction of thionyl chloride on N<SP>2</SP>,N<SP>6</SP>.bisbenzyloxycarbonyl-L-lysine.
Patent GB-179744-A (GB)
Title: Improvements in number plates and rear lamps for use on motor vehicles
IPC: B60R13/10
Filed: 1921-03-15
Abstract: 179,744. Davis, W. J. March 15, 1921. Name and number plates. - A shallow box A fitted with brackets A<2> for attachment to the rear of a motor-vehicle is formed with a front face hinged at B<2>, and adapted, when opened, to receive a glass plate C on which the registration number is painted. The plate is held firmly between upper and lower guides or clips B<3>, and may be protected by an outer clear glass sheet C<2>. A smaller hinged frame D carries a red glass D<2> for the rear light E.
Patent GB-333524-A (GB)
Title: Improvements in or relating to safety arrangements for railway vehicles
IPC: B60T17/20
Filed: 1929-03-12
Abstract: 333,524. White, A. E., (National Malleable & Steel Castings Co.). March 12, 1929. Couplings, automatic and non-automatic.-In a railway vehicle provided with an independently arranged air brake coupling means is provided for shutting off the air before the release of the draught coupling. An electric cable coupling may be combined with the air brake coupling. The lever a, Fig. 1, is connected to the draught coupling release mechanism by a chain b, and transverse rods c, d, which may be operated independently by levers f, g, control the air valve e and an electric cable switch respectively. Movement of the lever a takes up the slack in the chain b and then turns the levers f, g before releasing the draught coupling. In a modification, Fig. 3, the chain b is connected to a draught-coupler release-member m provided with a hole to receive the plunger l of a lockmember h. The lock-member, Fig. 4, comprises a non-magnetic casing h, an iron piston i provided with sealing means and a reacting spring k. A pipe p from the brake system enters the top of the cylinder h and two solenoids o are inserted in the bottom of the cylinder. When either the air pressure or solenoids act on the piston i the plunger l remains in the hole in the release member m and the air and electric current have to be cut off before the draughtcoupler may be released. The plunger l may lock the handle a instead of the release member m.
Patent GB-456107-A (GB)
Title: Improvements in or relating to starting arrangement for diesel engines
IPC: A44C5/08
Filed: 1936-03-18
Abstract: 456,107. Starting Diesel engines. DAIMLER-BENZ AKT.-GES., Untert³rkheim, Stuttgart, Germany. March 18, 1936, No. 8126. Convention date, March 18, 1935. [Class 7 (v)] For starting a Diesel engine having an induction pipe 1 connected along its length to cylinder inlets 4...9, and an auxiliary induction passage 10 through which combustible mixture is drawn at starting, the passage 10 is connected to about the middle of the induction pipe 1, or several such passages are connected to the induction pipe at points along its length, in order to give an even charging of the engine cylinders. As shown, the passage 10 is provided with a starting carburetter 12, an electric vaporizer 11, and a throttle 13 arranged to open when the main throttle 3 is closed. The throttles 3, 13 may be controlled by hand or automatically by a centrifugal governor. In a modification, the passage 10 is connected to the induction pipe 1 by branch passages opposite to the cylinder inlets 4 ... 9, the induction pipe being fitted with throttles operated from the throttle 3 and arranged to divide the induction pipe at starting into sections, each connected to one of the branch passages and one of the engine cylinders. In a further modification, each of the branch passages is fitted with a separate starting carburetter, vaporizer, and throttle, all the throttles being connected for simultaneous or successive operation.
Patent GB-594679-A (GB)
Title: Improvements in and relating to the metallisation of non-conductive materials by electro-deposition
IPC: C23C18/44
Filed: 1945-04-03
Abstract: 594,679. Preparation of non-conductive surfaces for electrodeposition of metals thereon. CALLENDER - SUCHY DEVELOPMENTS, Ltd., and SUCHY, C. T. April 3, 1945, No. 8189. Drawings to Specification. [Class 41] In a process for preparing for electroplating non-conductive materials such as fabric, porous bodies, or solid bodies made of materials such as plastic material and glass whose surfaces have been treated so as to make the surfaces porous, comprising immersion of the materials in stannous chloride solution followed by impregnation with a silver solution, drying and then brushing or otherwise removing the conducting particles from the surface, as described in Specifications 572,071 and 575,148, the step of impregnation with the silver solution and optionally also that of impregnation with the stannous chloride is effected in a closed vessel under vacuum or partial vacuum. The material to be impregnated may be heated before introduction into the vessel. After the treatment under vacuum, the impregnating solution is drained off and the vessel is subjected to pressure. The cycle of operations with any one liquid may be repeated.
Patent GB-621726-A (GB)
Title: Improvements in induction heating apparatus
IPC: H05B6/36
Filed: 1944-05-02
Abstract: 621,726. Heating by electro-magnetic induction. INDUCTION HEATING CORPORATION. May 2, 1944, No. 8276. Convention date, April 14, 1943. Addition to 621,725. [Class 39(iii)] In induction heating apparatus as described in the parent Specification and comprising, for example, a T-shaped inductor 17, 18, 32, 19, 20, 25 having a cooling fluid conduit 30, the loop formed by the reversing portion of the conductor, as at 32, is enlarged to increase the coupling spacing with the end object 24<SP>1</SP>, thus substantially compensating for the greater field strength due to the said loop. The end object is preferably arranged to provide a greater spacing at a than at b. A notch 33 may also be provided and the centre of the inductor can be earthed, as at 47.
Patent GB-512837-A (GB)
Title: Improvements in or relating to anti-skid tire chains for vehicle wheels
IPC: B60C27/08
Filed: 1938-03-17
Abstract: 512,837. Wheel tyres. JACKSON, L. MELLERSH-. (American Chain & Cable Co., Inc.). March 17,1938,No. 8284. [Class 144.(ii)] The ground-engaging links of a tyre-chain are formed as closed loops with projecting caulks diverging from, and extending laterally outwardly beyond, the side strands of the link. In the form shown in Figs. 2 and 4, the link 10 of the cross-chain member is straddled by a yoke-shaped caulk 11 having divergent ground-engaging arms 13 and secured by a riveted stud 15. The projecting head 20 of the latter may be diamond or other shape to afford ground-grip. To facilitate assemblage oh existing tyre-chains, the stud 15 may be screw-threaded into the yoke 11 or, the stud may be omitted, in which case the yoke may be welded to the link. In the modifications shown in Figs 8, 9, and 17, separate caulks, each formed with one or more ground-engaging elements, are welded to the side strands of the links. Fig. 30 shows a modification in which an arch-shaped caulk 130 with knife-edges 124 is welded across the sides 111, 112 of a curblink 110. Fig. 36 shows a further modification in which the apex 125 of a vee-shaped caulk 120c projects through the link to engage the tyre 126.
Patent GB-790453-A (GB)
Title: Induction coil incorporating polarised electromagnetic ringer
IPC: G10K1/062
Filed: 1955-03-16
Abstract: 790,453. Substation equipment. STANDARD TELEPHONES & CABLES, Ltd. March 16, 1956 [March 18, 1955], No. 8304/56. Class 40 (4). The induction coil and the bell both make use of the same winding 8 and core 1, 1<SP>1</SP>, 11 ; the bell also comprises one or more permanent magnets 4 and an armature 7, 14 carrying a hammer 15. In modifications, Figs. 5 and 6 (not shown), the armature is cylindrical with one or more permanent bar magnets secured to it at right angles to its axis.